As a cold front approached from the west, a few showers and thunderstorms developed across upstate New York. Isolated storms became severe and produced damaging winds.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS BGM wrote it up.
As a cold front approached from the west, a few showers and thunderstorms developed across upstate New York. Isolated storms became severe and produced damaging winds.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Binghamton, NY wrote its last area forecast discussion before the first event at May 3, 5:23 AM EST, 4 hours 7 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BINGHAMTON NY 623 AM EDT MON MAY 3 2010 .SYNOPSIS... CONDITIONS WILL IMPROVE THIS AFTERNOON WITH PARTLY SUNNY SKIES AND A MODEST BREEZE. A WEAK FRONTAL BOUNDARY WILL BRING THE CHANCE FOR SHOWERS ON TUESDAY FOLLOWED BY MOSTLY SUNNY SKIES AND MODERATING TEMPERATURES ON WEDNESDAY. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... THE COLD FRONT THAT WAS EXPECTED TO BRING THUNDERSTORMS YESTERDAY AFTERNOON AND EVENING HAS SLOWED CONSIDERABLY. IT IS STILL WEST OF BUFFALO. IT MAY NOT BEGIN TRAVERSING THE CWA UNTIL SOMETIME MID MORNING. THIS WILL KEEP SOME RAIN SHOWERS IN THE FORECAST FOR THE MORNING HOURS. BY THIS AFTERNOON SHOWERS SHOULD BEGIN TO TAPER OFF. THE INSTABILITY THAT WAS AROUND YESTERDAY HAS STABILIZED FOR THE MOST PART...SO NOT EXPECTING THUNDERSTORMS ATTM. && .SHORT TERM /6 PM THIS EVENING THROUGH WEDNESDAY NIGHT/... A RIDGE WILL ATTEMPT TO BUILD MONDAY NIGHT. HOWEVER AN UPPER LEVEL TROUGH WILL MOVE ACROSS THE AREA ON TUESDAY AND A WEAK LOW WILL DEVELOP TO THE SOUTHEAST. THIS WILL CAUSE SOME SHOWERS AND POSSIBLY ENOUGH INSTABILITY ON TUESDAY TO SPARK OFF A FEW THUNDERSTORMS. THIS SYSTEM WILL QUICKLY MOVE OUT AND WEDNESDAY SHOULD BE QUITE WITH HIGHS IN THE 70S. && .LONG TERM /THURSDAY THROUGH SUNDAY/... FEW CHGS MADE TO LONG TERM THIS MORNING. CURRENT HPC GRIDS AGREE WITH ECMWF GUIDANCE WITH FRONTAL PASSAGE EXPECTED DRG THE DAY THUR AS H5 LOW TRACKS THRU CANADA. LITTLE COLD AIR IS IN PLACE BHND THIS FRONT...WITH TEMPS CONTINUING TO RUN ABV NORMAL THRU THE END OF THE WEEK. AFT THIS TIME...STORM SYSTEM EXPECTED TO DVLP TO THE LEE OF THE ROCKIES WITH STRONG H5 LOW WINDING UP OVR THE UPPER MIDWEST/GREAT LKS REGION. THIS WL LKLY BRING CHCS FOR SHOWERS/TSTMS THRU THE WEEKEND. TEMPS PROGGED TO DROP SIGNIFICANTLY WITH FROPA AT SOME POINT DRG THE END OF THE EXTNDD. 00Z GFS SIMILAR IN PATTERN TO EURO THO IS MUCH QUICKER WITH MVMNT OF CLOSED H5 LOW THRU THE NRN STATES. 00Z GFS ENSEMBLES APPEAR TO BE COMPROMISE BTWN EURO/GFS. PREFER A SLOWER SOLN AS IS USUALLY THE CASE...THUS CURRENT GRIDS CERTAINLY APPEAR REASONABLE. ONLY A FEW TWEAKS TO ADD IN CHC FOR THUNDER THUR AFTN AND LINGERING INTO SAT. && .AVIATION /10Z MONDAY THROUGH FRIDAY/... VFR CONDITIONS OVER NY TERMINALS THIS MORNING...WITH MVFR AND BRIEF IFR RESTRICTIONS AT AVP WHERE MAIN RAIN AREA RESIDES. EXPECT SHOWERS TO OVERSPREAD TERMINALS BETWEEN 14Z-18Z TODAY...WITH BRIEF MVFR VSBY/CIG RESTRICTIONS. COLD FRONT MOVES THROUGH BY 18Z...WITH DRY AIR ALOFT AND CLEARING SKIES EXPECTED BEHIND BOUNDARY. EXPECT MOST TERMINALS WILL SEE EITHER LINGERING HIGH CIRRUS OR CLEAR SKIES BY EVENING. WITH SKIES CLEARING...CANNOT RULE OUT THE POSSIBILITY FOR FOG TO DEVELOP OVERNIGHT. CONDITIONS APPEAR TO BE FAVORABLE FOR MVFR AND POSSIBLY LOCALIZED IFR VSBY RESTRICTIONS LATE TONIGHT WITH LINGERING LOW LEVEL MOISTURE...LIGHT WINDS AND CLEAR SKIES. CONFIDENCE ON CLEARING IS NOT HIGH ENOUGH TO WARRANT MENTION AT THIS TIME BUT MAY NEED TO BE ADDED LATER ON. WINDS START OFF FROM THE SOUTH-SOUTHEAST FROM 5-10KTS... INCREASING TO 10-12KTS OUT OF THE SOUTHWEST MID-MORNING. BEHIND FRONTAL PASSAGE AFTER 18Z...FLOW BECOMES NORTHWESTERLY WITH OCCASIONAL GUSTS TO NEAR 25 KTS EXPECTED DURING DAYLIGHT HOURS. WINDS WILL LIGHTEN AFTER SUNSET. OUTLOOK... TUE - WED...MAINLY VFR. BRIEF MVFR POSSIBLE TUE AFTERNOON IN SHOWERS ALONG WEAK FRONTAL BOUNDARY. THU-FRI...MVFR PSBL IN SCT -SHRA. && .FIRE WEATHER... RAIN SHOWERS WILL CONTINUE THROUGH THE MORNING AND SHOULD BEGIN TO TAPER OFF THIS AFTERNOON. TONIGHT WILL BE QUIET BEFORE ANOTHER SYSTEM BRINGS MORE SHOWERS AND POSSIBLY A FEW THUNDERSTORMS ON TUESDAY. WEDNESDAY WILL SEE THE RETURN OF SOME SUNSHINE AND HIGH TEMPS REACHING INTO THE 70S. NOT EXPECTING ANY FIRE WEATHER CONCERNS OVER THE NEXT SEVERAL DAYS. && .BGM WATCHES/WARNINGS/ADVISORIES... PA...NONE. NY...NONE. && SYNOPSIS... NEAR TERM... SHORT TERM... LONG TERM...PN AVIATION...PN FIRE WEATHER...
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BINGHAMTON NY 303 AM EDT MON MAY 3 2010 NYZ009-015>018-022>025-036-037-044>046-055>057-062-PAZ038>040-043- 044-047-048-072-040715- NORTHERN ONEIDA-YATES-SENECA-SOUTHERN CAYUGA-ONONDAGA-STEUBEN- SCHUYLER-CHEMUNG-TOMPKINS-MADISON-SOUTHERN ONEIDA-CORTLAND-CHENANGO- OTSEGO-TIOGA-BROOME-DELAWARE-SULLIVAN-BRADFORD-SUSQUEHANNA- NORTHERN WAYNE-WYOMING-LACKAWANNA-LUZERNE-PIKE-SOUTHERN WAYNE- 303 AM EDT MON MAY 3 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NEW YORK...SOUTHEASTERN NEW YORK AND NORTHEAST PENNSYLVANIA. .DAY ONE...TODAY AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
The Binghamton radar (KBGM), 83 km away, was scanning. The volume nearest the first event began at 14:27 UTC.
1 thunderstorm wind. Local standard time, as filed.
Straight line wind damage was evident near a home just west of Watkins Glen. A roof was partially torn off a shed. A small chicken coup was moved off its foundation by almost a foot. There were also several branches down in the storm damage area.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New York in 2010Every state in 2010This day in weather historyWarnings in New York, May 2010
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 235362.